Two identical cars are parked 4.7 m apart on a car dealers showroom floor. The force of gravity between the cars is 4.5 X 10-6N. What is the mass of each car?

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.

Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current